hoppscotch/hoppscotch
Open-Source API Development Ecosystem • https://hoppscotch.io • Offline, On-Prem & Cloud • Web, Desktop & CLI • Open-Source Alternative to Postman, Insomnia
What it does
Hoppscotch is a free, open-source tool that lets developers test and interact with APIs — the behind-the-scenes connections that allow software products to communicate with each other — without needing expensive software. It works in a web browser, on desktop, or via command line, and serves as a free alternative to paid tools like Postman or Insomnia.
Why it matters for PMs
With nearly 78,000 GitHub stars, Hoppscotch has massive organic adoption, signaling it has become a go-to tool in developer workflows — meaning product teams building API-dependent products should understand what their engineers are using to test integrations. Its open-source, self-hostable model also appeals to enterprises with data privacy concerns, giving it a credible path to monetization against established paid competitors.
Early stage — limited signal data
Score updated Feb 18, 2026
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